package com.itheima.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.Result;
import com.itheima.service.MemberService;
import com.itheima.service.ReportService;
import com.itheima.service.SetmealService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private MemberService memberService;

    @Reference
    private SetmealService setmealService;

    @Reference
    private ReportService reportService;

    //会员数据量统计
    @RequestMapping("/getMemberReport.do")
    public Result getMemberReport(){
        Calendar calendar = Calendar.getInstance();
        //将时间往前推12个月
        calendar.add(Calendar.MONTH,-12);
        //创建一个新的list存储月份数据
        List<String> list = new ArrayList<>();
        for (int i = 0; i < 12; i++) {
            //循环 每次加一个月 将月份存储到list中
            calendar.add(Calendar.MONTH,1);
            //格式化日期
            list.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
        }
        System.out.println("list = " + list);
        Map<String, Object> map = new HashMap<>();
        //存储到map中
        map.put("months",list);

        try {
            //返回一个memberCount
            List<Integer> memberCount = memberService.findMemberCountByMonth(list);
            map.put("memberCount",memberCount);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }

    //获取套餐统计数据
    @RequestMapping("/getSetmealReport.do")
    public Result getSetmealReport (){

        try {
            //由数据库查询返回一个集合 其中既有数量 又有套餐名称
            List<Map<String,Object>> list = setmealService.findSetmealCount();
            //创建一个集合 用来存储套餐名称
            List<String> setmealNames = new ArrayList<>();
            if (list != null && list.size() > 0){
                for (Map<String, Object> m : list) {
                    String name = (String) m.get("name");
                    setmealNames.add(name);
                }
            }
            Map<String, Object> map = new HashMap<>();
            map.put("setmealCount",list);
            map.put("setmealNames",setmealNames);
            return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    //获取运营统计数据
    @RequestMapping("/getBusinessReportData.do")
    public Result getBusinessReportData(){
        try {
            Map<String,Object> map = reportService.getBusinessReport();
            return new Result(true,MessageConstant.GET_BUSINESS_REPORT_SUCCESS,map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //Excel导出运营统计数据
    @RequestMapping("/exportBusinessReport.do")
    public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
        try {
            //获取运营统计数据
            Map<String, Object> businessReport = reportService.getBusinessReport();
            String reportDate = (String) businessReport.get("reportDate");

            Integer todayNewMember = (Integer) businessReport.get("todayNewMember");
            Integer totalMember = (Integer) businessReport.get("totalMember");
            Integer thisWeekNewMember = (Integer) businessReport.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) businessReport.get("thisMonthNewMember");

            Integer todayOrderNumber = (Integer) businessReport.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) businessReport.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) businessReport.get("thisMonthOrderNumber");

            Integer todayVisitsNumber = (Integer) businessReport.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) businessReport.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) businessReport.get("thisMonthVisitsNumber");

            List<Map> hotSetmeal = (List<Map>) businessReport.get("hotSetmeal");


            //获得Excel文件绝对路径
            String templateRealPath = request.getSession().getServletContext().getRealPath("template")
                    + File.separator + "report_template.xlsx";

            XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File(templateRealPath)));
            XSSFSheet sheet = workbook.getSheetAt(0);

            //为每个单元格赋值
            XSSFRow row = sheet.getRow(2);
            row.getCell(5).setCellValue(reportDate);//日期

            //会员
            row = sheet.getRow(4);
            row.getCell(5).setCellValue(todayNewMember);//本日新增会员数
            row.getCell(7).setCellValue(totalMember);//总会员数

            row = sheet.getRow(5);
            row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

            //预约
            row = sheet.getRow(7);
            row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
            row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

            row = sheet.getRow(8);
            row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

            row = sheet.getRow(9);
            row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

            //热门套餐
            int rowNum = 12;
            for (Map map : hotSetmeal) {
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                row.getCell(4).setCellValue(name);
                row.getCell(5).setCellValue(setmeal_count);
                row.getCell(6).setCellValue(proportion.doubleValue());
            }
            ServletOutputStream outputStream = response.getOutputStream();
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("content-Disposition","attachment;filename="+reportDate+".xlsx");
            workbook.write(outputStream);
            outputStream.flush();
            outputStream.close();
            workbook.close();
            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL,null);
        }


    }    //PDF导出运营统计数据
    @RequestMapping("/exportBusinessReport4PDF.do")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response){
        try {
            //获取运营统计数据
            Map<String, Object> businessReport = reportService.getBusinessReport();
            String reportDate = (String) businessReport.get("reportDate");
            List<Map> hotSetmeal = (List<Map>) businessReport.get("hotSetmeal");

            //动态获取模板文件绝对路径
            String jrxmlPath = request.getSession().getServletContext().getRealPath("template")
                    + File.separator + "health_business3.jrxml";
            String jasperPath = request.getSession().getServletContext().getRealPath("template")
                    + File.separator + "health_business3.jasper";
            //编译模板
            JasperCompileManager.compileReportToFile(jrxmlPath,jasperPath);
            //填充数据
            JasperPrint jasperPrint = JasperFillManager.fillReport
                    (jasperPath, businessReport, new JRBeanCollectionDataSource(hotSetmeal));

            ServletOutputStream outputStream = response.getOutputStream();
            response.setContentType("application/pdf");
            response.setHeader("content-Disposition","attachment;filename="+reportDate+".pdf");

            //输出文件
            JasperExportManager.exportReportToPdfStream(jasperPrint,outputStream);

            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL,null);
        }


    }


}
